ab-nginx/build/entrypoint.sh

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#!/bin/sh
#
### ab-nginx entrypoint script
#
convertCase () {
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printf "%s" "$1" | tr "[:lower:]" "[:upper:]"
}
# convert environment variables to UPPERCASE for proper string comparison
ACCESS_LOG=$(convertCase "$ACCESS_LOG")
HSTS=$(convertCase "$HSTS")
TLS13_ONLY=$(convertCase "$TLS13_ONLY")
# export new environment variables
export ACCESS_LOG=$ACCESS_LOG
export HSTS=$HSTS
export TLS13_ONLY=$TLS13_ONLY
### update configuration files with environment variables
# update server name list
printf "\nUpdating server name list... "
sed -i -e "s%<SERVER_NAMES>%${SERVER_NAMES}%" /etc/nginx/server_names.conf
printf "done\n"
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# update access log global preference
if [ "$ACCESS_LOG" = 'OFF' ]; then
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printf "Turning access log OFF... "
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sed -i -e "s%<ACCESS_LOG_SETTING>%off%" /etc/nginx/nginx.conf
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printf "done\n"
elif [ "$ACCESS_LOG" = 'ON' ]; then
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printf "Turning access log ON... "
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sed -i -e "s%<ACCESS_LOG_SETTING>%/var/log/nginx/access.log combined%" /etc/nginx/nginx.conf
printf "done\n"
fi
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# update HTTPS redirect port if SSL server test block exists
if [ -f "/etc/nginx/sites/note" ]; then
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printf "Updating port redirects... "
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sed -i -e "s%<HTTPS_PORT>%${HTTPS_PORT}%" /etc/nginx/sites/05-test_secured.conf.disabled
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printf "done\n"
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fi
# activate HSTS
if [ "$HSTS" = 'TRUE' ]; then
printf "Activating HSTS configuration... "
sed -i -e "s/^#add_header/add_header/" \
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/etc/nginx/ssl-config/mozIntermediate_ssl.conf.disabled
sed -i -e "s/^#add_header/add_header/" \
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/etc/nginx/ssl-config/mozModern_ssl.conf.disabled
printf "done\n"
fi
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# activate SSL configuration as appropriate and only if certs exist
if [ "$TLS13_ONLY" = 'FALSE' ]; then
if [ -f "/certs/fullchain.pem" ] && \
[ -f "/certs/privkey.pem" ] && \
[ -f "/certs/chain.pem" ] && \
[ -f "/certs/dhparam.pem" ]; then
printf "Certificates found. Securing deployment using TLS 1.2\n"
# activate shared SSL configuration file
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mv /etc/nginx/ssl-config/mozIntermediate_ssl.conf.disabled \
/etc/nginx/ssl-config/mozIntermediate_ssl.conf
if [ -f "/etc/nginx/sites/note" ]; then
# activate SSL test server block & deactivate normal one
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mv /etc/nginx/sites/05-test_secured.conf.disabled \
/etc/nginx/sites/05-test_secured.conf
mv /etc/nginx/sites/05-test_nonsecured.conf \
/etc/nginx/sites/05-test_nonsecured.conf.disabled
fi
fi
elif [ "$TLS13_ONLY" = 'TRUE' ]; then
if [ -f "/certs/fullchain.pem" ] && \
[ -f "/certs/privkey.pem" ] && \
[ -f "/certs/chain.pem" ]; then
printf "Certificates found. Securing deployment using TLS 1.3\n"
# activate shared SSL configuration file
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mv /etc/nginx/ssl-config/mozModern_ssl.conf.disabled \
/etc/nginx/ssl-config/mozModern_ssl.conf
if [ -f "/etc/nginx/sites/note" ]; then
# activate SSL test server block & deactivate normal one
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mv /etc/nginx/sites/05-test_secured.conf.disabled \
/etc/nginx/sites/05-test_secured.conf
mv /etc/nginx/sites/05-test_nonsecured.conf \
/etc/nginx/sites/05-test_nonsecured.conf.disabled
fi
fi
fi
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# execute commands passed to this container
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printf "\nSetup complete...Container ready...\n"
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exec "$@"
#EOF